# I NEED HELP AND THANX

1. Jan 23, 2005

### hype_chicky

the starship enterprise wishes to fly a distant glaxy 85 light years away. At what speed would it have to travel in order that the distance tot he galaxy would only be 20 light years....RELAVITY:( ..help if u caaaan thank yous

2. Jan 23, 2005

### aptiva

hmm

yes this is a rather intriguing question...i would love to see someone answer this one..any takers?

3. Jan 24, 2005

### iodmys

Have you seen the following formula:
$$l=l_{0}\sqrt{1-(v/c)^2}$$
You know both lengths and $$c$$, now just solve for $$v$$.

Last edited: Jan 24, 2005